DICP OpenIR
Oxidative dehydrogenation of n-butane to butenes on Mo-doped VMgO catalysts
Liu, Xue1,2; Duan, Linhai1; Yang, Weishen2; Zhu, Xuefeng2
Source PublicationRSC ADVANCES
2017
DOI10.1039/c7ra04936f
Volume7Issue:54Pages:34131-34137
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordSUPPORTED VANADIUM-OXIDE ; MG-O CATALYST ; SELECTIVE OXIDATION ; V/MGO CATALYSTS ; PERFORMANCE ; ALUMINA ; OLEFINS ; MOLYBDENUM ; 1-BUTENE ; SIZE
AbstractVMgO catalysts with different molybdenum doping amounts were prepared by an impregnation method. The structure, specific surface area, and basic and redox properties of these catalysts were determined by XRD, BET, CO2-TPD, and H-2-TPR. The XRD results revealed that all catalysts contained an orthovanadate phase (Mg-3(VO4)(2)), while no metavanadate and pyrovanadate phases were detected. BET surface area analysis showed that the Mo-doped catalysts possessed lower surface areas than the undoped one. The reducing and basicity properties of the catalysts were characterized by H2-TPR and CO2-TPD measurements, which demonstrated that Mo-doping improved the redox temperature and reduced the number of basic sites. The performances of these catalysts were investigated at different C4H10/O-2 molar ratios, temperatures, and contact times. The Mo-doping not only improved the selectivity of butenes but also inhibited the deep oxidation reactions, although cracking reactions occurred with high levels of Mo doping. When the Mo/V atomic ratio was 3 : 100, n-butane conversion of 34.5% and total butene selectivity of 79.3% were achieved at 630 degrees C. To the best of our knowledge, the oxidative dehydrogenation performance of the synthesized Mo-doped VMgO catalysts described in this work represents a remarkable improvement compared to previous reports.
Language英语
WOS IDWOS:000405279100055
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152038
Collection中国科学院大连化学物理研究所
Affiliation1.Liaoning Shihua Univ, Coll Chem Chem Engn & Environm Engn, Fushun 113001, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Liu, Xue,Duan, Linhai,Yang, Weishen,et al. Oxidative dehydrogenation of n-butane to butenes on Mo-doped VMgO catalysts[J]. RSC ADVANCES,2017,7(54):34131-34137.
APA Liu, Xue,Duan, Linhai,Yang, Weishen,&Zhu, Xuefeng.(2017).Oxidative dehydrogenation of n-butane to butenes on Mo-doped VMgO catalysts.RSC ADVANCES,7(54),34131-34137.
MLA Liu, Xue,et al."Oxidative dehydrogenation of n-butane to butenes on Mo-doped VMgO catalysts".RSC ADVANCES 7.54(2017):34131-34137.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Xue]'s Articles
[Duan, Linhai]'s Articles
[Yang, Weishen]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Xue]'s Articles
[Duan, Linhai]'s Articles
[Yang, Weishen]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Xue]'s Articles
[Duan, Linhai]'s Articles
[Yang, Weishen]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.